On Jun 6, 2012 2:14 PM, "Florian Weimer" wrote: > > On 06/06/2012 03:09 PM, Dave Korn wrote: >>>> >>>> I am not sure, but AFAICT, -pthread is Linux-specific. >>> >>> >>> No, it's the canonical multi-os option to enable pthreads, as >>> generic as it gets. >> >> >> According to the manual(*), it's a machine-dependent option for RS6000 and >> Solaris 2 only!
That's http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16519 > And there's a lot of confusion about whether you have to throw in > -D_REENTRANT as well (on GNU/Linux and on other systems). > > I think on GNU/Linux, pthread detection mostly happens at run time these > days, and you ought to use the _r API variants (which are available without > -pthread) in library code. I even think you shouldn't link against the > library unless you actually create threads. Certainly true for C++ as linking to libpthread causes libstdc++ to use atomic ops for reference-counting.
